Enterotoxigenic Escherichia coli（ETEC）infection can induce watery diarrhea，leading to dehydration，electrolyte disturbance，and even death in severe cases. Recombinant B subunit/inactivated whole-cell cholera（rBS/WC）vaccine is effective in preventing ETEC infectious diarrhea. On the basis of the latest evidence on etiology and epidemiology of ETEC，as well as the effectiveness，safety，and health economics of rBS/WC vaccine，National Clinical Research Center for Child Health（The Children’s Hospital，Zhejiang University School of Medicine）and Zhejiang Provincial Center for Disease Control and Prevention invited experts to develop expert consensus on rBS/WC vaccine in prevention of ETEC infectious diarrhea. It aims to provide the clinicians and vaccination professionals with guidelines on using rBS/WC vaccine to reduce the incidence of ETEC infectious diarrhea.

Platinum-based chemotherapy resistance is a key factor of poor prognosis and recurrence in hepatocellular carcinoma (HCC). Herein, RNAseq analysis revealed that elevated tubulin folding cofactor E (TBCE) expression is associated with platinum-based chemotherapy resistance. High expression of TBCE contributes to worse prognoses and earlier recurrence among liver cancer patients. Mechanistically, TBCE silencing significantly affects cytoskeleton rearrangement, which in turn increases cisplatin-induced cycle arrest and apoptosis. To develop these findings into potential therapeutic drugs, endosomal pH-responsive nanoparticles (NPs) were developed to simultaneously encapsulate TBCE siRNA and cisplatin (DDP) to reverse this phenomena. NPs (siTBCE + DDP) concurrently silenced TBCE expression, increased cell sensitivity to platinum treatment, and subsequently resulted in superior anti-tumor effects both in vitro and in vivo in orthotopic and patient-derived xenograft (PDX) models. Taken together, NP-mediated delivery and the co-treatment of siTBCE + DDP proved to be effective in reversing chemotherapy resistance of DDP in multiple tumor models.

Humans ; Myocardial Infarction/surgery* ; Bone Marrow Transplantation ; Bone Marrow Cells ; Ventricular Function, Left

Objective:To explore the clinical manifestations, genetic disorder, prognosis of 14 neonates with primary immunodeficiency disease(PID).Methods:A total of 14 newborns with PID admitted to Department of Neonatology at Beijing Children′s Hospital from January 2017 to December 2019 were enrolled for retrospective analysis, focusing on their clinical manifestation, peripheral blood cell examnations, gene mutation, and outcomes after hemotopoietic stem cell transplantation(HSCT).Results:The average gestational age of the newborn was (38.6±1.2) weeks, the birth weight was (3 265±325)g, and the median diagnosis time was 57.5 days.Fourteen newborns with PID were diagnosed by whole exome sequencing as chronic granuloma (6/14), DiGeogre syndrome (3/14), Wiskott-Aldrich syndrome (2/14), severe combined immunodeficiency (2/14) and selective IgA deficiency (1/14). Regarding the clinical manifestations, fever, pneumounia and colitis accounted for 7/14, the decrease of T lymphocytes in peripheral blood accounted for 6/14, and the decrease of B lymphocytes accounted for 5/14.The absolute value of eosinophils increased (>500 cells/mm 3) accounted for 12/14, of which moderately increased (1 500 to 5 000 cells/mm 3) accounted for 5/12, and the absolute value of monocytes increased (median>1.5×10 9/L) accounted for 7/14.Follow-up children received HSCT accounted for 7/14, and the median time of receiving transplantation was 330 days after birth.By the time of follow-up, the primary disease resolved after HSCT accounted for 5/7, and the survival rate was 85.7%.Among them, two children with chronic granulomatosis were diagnosed with inflammatory bowel disease before transplantation, and the primary disease improved after HSCT.Three-quarters of the deaths had inflammatory bowel disease-like manifestations and died of infectious shock. Conclusion:The clinical manifestations of children with PID during the neonatal period are not specific.The manifestations of colitis need more attention.Some of the newborns with PID will evolve into inflammatory bowel disease or have inflammatory bowel disease-like manifestations or even die of it.HSCT is a fundamental treatment for the primary disease.

Objective:To explore the clinical characteristics and prognosis of children with inborn error of immunity (IEI) onset in the neonatal period.Methods:The clinical data of 21 cases of IEI neonates admitted to the Neonatal Center of Beijing Children′s Hospital were collected, and their clinical manifestations, peripheral blood test characteristics, genetic diagnosis, and primary disease during hospitalization were collected.The prognosis follow-up results were summarized and analyzed.Results:Twenty-one children with IEI were finally diagnosed by whole exome sequencing, including 15 cases of primary immunodeficiency(including 6 cases of chronic granulomatous disease, 3 cases of DiGeogre syndrome, 2 cases of Wiskott-Aldrich syndrome, 2 cases of severe combined immunodeficiency disease, 1 case of selective IgA deficiency, and 1 case of ectodermal dysplasia with immunodeficiency), 5 cases of infantile inflammatory bowel disease, and 1 case of familial haemophagocytic lymphohistiocytosis.Clinical manifestations of sepsis and colitis were the most common(accounting for 12/21), and 16/21 of the children had an increase in the absolute value of eosinophils(>0.5×10 9/L). Children received hematopoietic stem cell transplantation accounted for 7/21, and the median time of receiving transplantation was 11 months after birth.By the time of follow-up, the primary disease remission after hematopoietic stem cell transplantation accounted for 5/7.Among them, 2 cases were diagnosed with CGD associated inflammatory bowel disease before transplantation, and the primary disease resolved after hematopoietic stem cell transplantation.Of the 14 children who did not receive hematopoietic stem cell transplantation, 10 children died.Five of the 11 deaths were treated with systematic steroid before diagnosised. Conclusion:The clinical manifestations of IEI in the neonatal period are not specific.Sepsis and colitis are the most common manifestations.Most of the cases have elevated eosinophils in the peripheral blood.Systematic streoid therapy needs to be cautious, and timely evaluation for hematopoietic stem cells transplantation is an effective option to resolution.

Kidney cancer usually requires multidisciplinary individualized treatments. No matter what kind of treatment, drugs are essential. According to the "six-step process" (prescription legitimacy review, patient basic information evaluation review, treatment protocol review, organ function and laboratory index review, pretreatment review, and unconventional prescription review) in prescription review proposed by the anti-tumor drug prescription review expert group and referring to domestic and foreign kidney cancer guidelines and drug instructions in recent years, this consensus selects 9 targeted drugs and 4 immunotherapeutic drugs that are currently commonly used in China and elaborates the key review points in patient basic information evaluation review, treatment protocol review, and organ function and laboratory index review of kidney cancer drug treatment, in order to provide reference for clinical front-line pharmacists to review prescriptions of kidney cancer patients and promote rational drug use in clinic.

Kidney cancer usually requires multidisciplinary individualized treatments. No matter what kind of treatment, drugs are essential. According to the "six-step process" (prescription legitimacy review, patient basic information evaluation review, treatment protocol review, organ function and laboratory index review, pretreatment review, and unconventional prescription review) in prescription review proposed by the anti-tumor drug prescription review expert group and referring to domestic and foreign kidney cancer guidelines and drug instructions in recent years, this consensus selects 9 targeted drugs and 4 immunotherapeutic drugs that are currently commonly used in China and elaborates the key review points in patient basic information evaluation review, treatment protocol review, and organ function and laboratory index review of kidney cancer drug treatment, in order to provide reference for clinical front-line pharmacists to review prescriptions of kidney cancer patients and promote rational drug use in clinic.

Objective:To summarize the clinical characteristics and treatment outcome of neonates with laryngopharyngeal congenital structural abnormalities in intensive care unit.Methods:The clinical data of neonates with congenital laryngopharyngeal structural abnormalities in the Neonatal Intensive Care Unit of the National Center of Beijing Children′s Hospital, Capital Medical University from January 2017 to December 2018 were retrospectively analyzed.The general data, birth status, disease types and clinical characteristics of abnormal laryngeal structure, complications, treatment and follow-up of some children with special diseases were summarized.These neonates were divided into the operation group and the conservative treatment group according to treatment methods, and then the outcomes of the two groups were compared.Results:A total of 133 cases of neonates with laryngopharyngeal congenital structural abnormalities were enrolled, including 73 cases(54.88%) with laryngomalacia, and 60 cases(45.12%) with special structural abnormalities.Of 60 cases with special structural abnormalities, 26 cases (19.54%) had pharynx and larynx cysts, 18 cases (13.53%) had vocal cord paralysis, 4 cases (3.00%) had laryngeal cleft, 2 cases (1.50%) had subglottic hemangioma, 3 cases (2.25%) had Pireer Robin, 1 case (0.75%) had laryngeal poof, 5 cases (3.75%) had pharynx softening, 1 case (0.75%) had subglottic stenosis.Nine patients had special structural abnormalities and laryngomalacia simultaneously.Fiber nasopharyngoscope and enhanced CT were main auxiliary examinations.Twenty-two(16.5%) cases received surgical treatment.Conclusions:Early diagnosis is needed for the neonates and abnormal laryngeal structure.The best treatment scheme should be evaluated according to the condition of the newborn.For some acute cases, early operation and multidisciplinary comprehensive treatment are warranted.

Objective:To analyze the diagnosis and treatment of neonatal neuroblastoma (NB) by summarizing its clinical characteristics.Methods:This study retrospectively recruited 14 neonates with NB in Beijing Children's Hospital (National Center for Children's Health) from February 1, 2015, to February 1, 2020. Medical records and follow-up data as of February 29, 2020, were collected, and clinical staging based on International Neuroblastoma Staging System, risk grouping based on American Childhood Oncology Group risk grouping system, diagnosis, treatment, and prognosis were analyzed. According to whether surgical treatment was performed in the neonatal period or not, these subjects were divided into surgical and non-surgical groups. A descriptive statistical analysis was used for data analysis.Results:(1) Neonates with NB accounted for 0.063% (14/22 006) of the total number of newborns admitted to the hospital during the same period. The 14 cases were all full-term aged 15 d (8 h-23 d) at admission. Tumors were found in seven cases in prenatal examinations, while others presented with shortness of breath (three cases), abdominal distension (two cases), fever (one case), and dysuria and difficult defecation after birth (one case). (2) The primary tumor sites included the adrenal gland (eight cases), posterior mediastinum (three cases), retroperitoneum (two cases), and sacrococcygeal (one case). Three cases had extensive diffuse liver metastasis at admission. (3) Except for two cases who refused to examine, the serum neuron-specific enolase of 12 cases was 57.2 ng/ml (35.9-158.3 ng/ml) during hospitalization, and the urine vanillyl-mandelic acid creatinine of four cases was 2 304.940 (685.748-9 595.314). (4) Primary tumor sites were found in 14 cases by imaging examination. Bone scanning was performed in three cases, including one with a concentrated shadow of the right sacroiliac joint and two with no abnormalities. Ten cases underwent bone marrow aspiration and all with normal results. (5) Of the ten neonates received surgery (the surgical group), nine had the primary tumor wholly removed, without chemotherapy after the operation, and the tumor-free survival period was 19 months (1-45 months). One case (case 5) had a substantial primary tumor that could not be completely resected. The patient underwent a second surgery five months after the first operation due to disease progression and received postoperative chemotherapy. The child had stopped chemotherapy for 24 months and survived without a tumor. (6) In the non-surgical group (cases 11 to 14), the tumor in case 11 who refused chemotherapy shrank spontaneously after discharge, and the patient survived for 20 months with the tumor. The parents of the case 12 withdrew treatment during hospitalization, while the primary tumor and metastases disappeared after discharge, and the specific tumor markers gradually decreased to normal levels. The patient has been tumor-free survived for 25 months. Case 13 received mediastinal tumor resection and chemotherapy during infancy. At the end of the follow-up, chemotherapy had been stopped for 12 months, and the patient survived without a tumor. Case 14 withdrew treatment and died. (7) Among the ten cases in the surgical group, one patient's pathological result indicated a composite tumor, while the others were low differentiated neuroblastoma. There was no MYCN gene amplification, 1p36 deletion, or 11q23 deletion in the ten cases. (8) Among the ten children in the surgical group, nine were in stage 1, and one was in stage 4S (case 5). Nine cases were classified into extremely low-risk groups, while the other was in the low-risk group. The four cases in the non-surgical group could not be grouped by risk. Conclusions:Clinical manifestations of neonatal NB are often atypical. NB in stage 4S might resolve spontaneously, and expectant observation may be considered. The overall prognosis of neonatal NB is generally good, but further researches are needed.

Objective:To analyze the molecular and virulence characteristics of Staphylococcus aureus ( S. aureus) isolated from neonates. Methods:A total of 189 S. aureus isolates were collected from Beijing Children′s Hospital from January 2013 to October 2019 and analyzed by multilocus sequence typing (MLST), staphylococcal cassette chromosome mec (SCC mec) typing and Spa typing. Panton-valentine leucocidin (PVL)-encoding gene ( pvl) and 21 superantigen virulence genes were also detected. Results:The 189 S. aureus strains were isolated from respiratory secretions ( n=125), pus ( n=55), blood ( n=8) and pleural effusion ( n=1). There were 98 methicillin-susceptible S. aureus (MSSA) belonging to 42 MSSA clones and 91 methicillin-resistant S. aureus (MRSA) belonging to 26 MRSA clones. ST188-t189 and ST59-SCC mecⅣa-t437 were the predominant MSSA and MRSA clones accounting for 11% and 53%, respectively. The prevalence of pvl gene in MRSA isolates was significantly higher than that in MSSA isolates (32% vs 10%, P<0.01). There were 166 isolates (88%) carrying at least one superantigen virulence gene and among the 21 genes, seq and seb were the most common genes accounting for 47% and 43%, respectively. The most common superantigen genotype was seb- sek- seq. The positive rates of superantigen genes in MRSA and MSSA isolates were 85% (77/91) and 90% (88/98), respectively ( P>0.05). Conclusions:The main clones of MRSA and MSSA were different in neonates. ST59-SCC mecⅣa-t437 was the most predominant MRSA clone, while ST188-t189 was the most predominant MSSA clone. MSSA clones were more dispersed. The prevalence of pvl gene in MRSA was higher than that in MSSA. No significant difference in the prevalence of superantigen genes was observed between MRSA and MSSA.